CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
SM15 Rev. 4.00 RS16 Series Remote Switch Manual
Periodically NAT will release manual amendments. In order to maintain the most
accurate and up to date manual these amendments should be carried out immediately
upon receipt and recorded on the following amendment record.
AMENDMENT RECORD
Amendment
Number
Amendment
Date
Section(s)
Changed
Date
Entered
Entered By
Insert any Amendment Instruction sheets after this page.
Nov 24,2003 Page ii
ENG-FORM: 820-0109.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
SM15 Rev. 4.00 RS16 Series Remote Switch Manual
Table of Contents
Section Title Page
1.0 Description
1. Introduction 1-1
1.2 Purpose Of Equipment 1-1
1.3 Features 1-1
1.4 Specifications 1-1
1.4.1 Electrical Specifications 1-1
1.4.2 Physical Specifications 1-2
1.4.3 Environmental Specifications 1-2
1.5 Unit Nomenclature 1-3
2.0 Installation
2.1 Introduction 2-1
2.2 Unpacking and Inspection 2-1
2.3 Installation Procedures 2-1
2.3.1 Warnings 2-1
2.3.2 Cautions 2-1
2.3.3 Cabling and Wiring 2-2
2.3.4 Fuses and Breakers 2-2
2.3.5 Post-Installation Checks 2-2
2.4 Continued Airworthiness 2-3
2.5 Installation Drawings 2-3
3.0 Operation
3.1 Introduction 3-1
3.2 General 3-1
3.2.1 Active Voltage Keying 3-1
3.2.2 Active Ground Keying 3-1
3.3 Limitations 3-1
3.4 Emergency Procedures 3-2
3.5 Performance 3-2
Nov 24,2003 Page iii
ENG-FORM: 820-0109.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
SM15 Rev. 4.00 RS16 Series Remote Switch Manual
Section 1.0 Description
1.1 Introduction
This manual contains information on the RS16 Series Remote Switch.
Information in this section consists of purpose of equipment, features and specifications.
1.2 Purpose of Equipment
The RS16 is a bulkhead mounted, user definable, remote switch used to switch sixteen
signals as one group or as individual groups of four. Dry nitrogen filled, gold contact,
sealed relays provide dry-circuit switching to 0.5A. It is suitable for use up to 35,000 feet.
1.3 Features
The RS16 is designed to switch up to sixteen navigational and/or audio signals. Each fourpole relay has its own status annunciation for fault monitoring. Each relay can be activated
by either voltage or ground keying, and has an independent ILS reversion logic switch.
Circuit boards are constructed of G10-FR (flame retardant) material, with solder masks
and reflowed tin plating; they are environmentally protected with conformal coating.
1.4 Specifications
1.4.1 Electrical Specifications
Operating voltages: +28 Vdc for each relay.
Current consumption: 20 mA / relay, 100 mA max for all (@ 28 Vdc).
Relay contacts: 0.5 A / contact max.
ILS source current: 0.1 A max.
1.4.2 Physical Specifications
Maximum dimensions, including flanges:
Height 1.20 inches (30.5 mm)
Depth 3.46 inches (87.9 mm)
Width 5.15 inches (130.8 mm)
Weight 0.44 lbs. (200g.)
Mounting Bulkhead
Activity annunciator: GREEN (RS16-101) or RED (RS16-102)
Nov 24, 2003 Page 1-1
ENG-FORM: 800-0106.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
RS16 Series Remote Switch Manual SM15 Rev. 4.00
1.4.3 Environmental Specifications
Operating Temperature -40°C to +70°C
Altitude 35,000 ft. max.
Humidity 95 % Non-Condensing
Shock 12 g. (any axis)
1.5 Unit Nomenclature
NOTE: The RS128 and RS192 families are derivative products that simply contain
multiple RS16 cards in a single enclosure. All performance characteristics and test
procedures are the same as those for the RS16.
Model Description / Distinction
RS16-001 16P2T data switch, GREEN annunciation. Can be mapped for voltage or
ground keying. ILS reversion relay.
RS16-101 16P2T data switch, card only (does NOT include enclosure), GREEN
annunciation. Can be mapped for voltage or ground keying. ILS reversion relay.
RS16-102 16P2T data switch, card only (does NOT include enclosure), RED annunciation.
Can be mapped for voltage or ground keying. ILS reversion relay.
RS128-000 Empty enclosure, allocated space for 8 RS16 cards. User may choose
combinations of RS16 cards.
RS128-008 Pre-filled with 8 RS16-101 cards for 128P2T operation.
Each RS16 card has an ILS reversion relay.
RS128-999 Pre-filled with 8 RS16-101 cards. Each RS16 card is hard-wire jumpered
to the normally closed position for each of the 16 contacts (relays
removed). Used to permit flight with the RS128-008 removed.
RS192-000 Empty enclosure, allocated space for 12 RS16 cards. User may choose
combinations of RS16 cards.
RS192-012 Pre-filled with 12 RS16-101 cards for 192P2T operation.
Each RS16 card has an ILS reversion relay.
RS192-999 Pre-filled with 12 RS16-101 cards. Each RS16 card is hard-wire jumpered
to the normally closed position for each of the 16 contacts (relays
removed). Used to permit flight with the RS192-008 removed.
End of section 1.0
Page 1-2 Nov 24, 2003
ENG-FORM: 800-0106.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
SM15 Rev. 4.00 RS16 Series Remote Switch Manual
Section 2.0 Installation
2.1 Introduction
Information in this section consists of: unpacking and inspection procedures, installation
procedures, post-installation checks, and installation drawings.
2.2 Unpacking and Inspection
Unpack the equipment carefully and locate the warranty card. Inspect the unit visually
for damage due to shipping and report all such claims immediately to the carrier
involved. Note that each unit should have the following:
- RS16 Series Remote Switch
- Warranty Card
- Release Certificate
Verify that all items are present before proceeding and report any shortage immediately
to your supplier.
Complete the warranty card information and send it to NAT when the installation is
complete. If you fail to complete the warranty card, the warranty will be activated on
date of shipment from NAT.
2.3 Installation Procedures
2.3.1 Warnings
Do not bundle any lines from this unit with transmitter coax lines. Do not bundle any
logic, audio, or DC power lines from this unit with 400 Hz synchro wiring or AC power
lines. Do not position this unit next to any device with a strong alternating magnetic field such as an inverter or significant interference to operation will result. In all
installations, use shielded cable exactly as shown and ground as indicated.
Significant problems may result from not following these guidelines.
2.3.2 Cautions
Do not install the RS16 without making a suitable amendment to the flight manual
indicating how information transfer has been implemented in the aircraft.
Nov 24, 2003 Page 2-1
ENG-FORM: 805-0105.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
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